Sand and slime separator



J. D. MCDQNALD.

SAND AND suME SEPARATOR.

APPLICATION FlLED AUG-5, 198- 1,350,509, Patented Aug. 24, 1920.

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ID. M DOFMLB 212W 7 wf Y l. D. McDONALD.

SAND AND SL IME SEPARATOR.

APPLlCATlON FILED AUG-5.1918.

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UNITED STATES JAMES D. MCDONALD, OF HAYDEN, ARIZONA.

SAND AND SLIME SEPARATOR.

Specification of Letters Patent.

Patented Aug. 2 1, 1920.

Application filed August 5, 1918. Serial No. 248,363.

To aZZ whom it may concern:

Be it known that 1, James D. MCDONALD, a citizen of Canada, residing at Hayden, in the county of Gila, State of Arizona, have invented certain new and useful Improvements in Sand and Slime Separators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in separators or classifiers, and particularly to devices for quickly and .eliiciently separating the sand from the One object of the present invention is to provide a novel and improved device of this character wherein the sand is more easily and effectively separated from the slime and discharged at such a point that is remote from the point of discharge of the slime.

Another object is to provide a novel and improved device of this character wherein the slime and sand are agitated so as to more properly separate the sand and permit the discharge of the latter from the machine at the side instead of at the end, as is the usual practice iii-machines of this character heretofore.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawings:

In the drawings:

Figure 1 is a top plan view of a machine of the character described, and made in accordance with my invention.

Fig. 2 is a vertical longitudinal sectional view taken on the line 22 of Fig. 1.

Fig. 8 is a side elevation of the machine.

Fig. is a vertical transverse sectional view taken on the line l-4l of Fig. 1.

Fig. 5 is a vertical transverse sectional view taken on the line 5-5 of Fig. 1.

Fig. 6 is an end view of the machine.

Referring particularly to the accompanying drawings, 10 represents a box of suitable size and material and having a bottom 11 which is preferably semi-cylindrical in cross section, as shown in the drawings. Extending longitudinally through and supported at its ends in bearings 12, in the end walls, of the box, is a shaft 14:. Disposed in one end of the box, and spaced from the adjacent end wall thereof, is a vertical transverse bafl'le wall 15, the same having its lower edge terminating a suitable distance from the bot-tom of the box, for a purpose which will presently appear. A vertical transverse partition 16 is disposed in the other end of the box and is spaced in vardly from the adjacent end wall 16 thereof, this partition 16 extending downwardly to the bottom of the box, and being formed with a horizontal and elongated opening 17, a suitable distance below the adjacent bearing 12. The upper portion of one of the side walls of the box is cut away, as shown at 18, for a purpose which will also appear in the description of the operation of the machine.

Secured on the shaft 14, adjacent the wall 15 is a spider or skeleton disk 19, while a similar disk 20 is secured to the shaft, adjacent the wall 16. Secured to and extending between these disks are the longitudinally extending agitator bars 21. These are preferably narrow blades standing oblique to true diametric lines within the agitator reel, their outer edges slightly in advance of their inner edges in the direction of rotation so that their tendency is to draw the slime inward.

Supported in the upper portion of the wall 15, and in a partition 10 near the ad jacent end wall 15 of the box, is a hollow shaft 22, through which the adj acent end of the shaft 14 is disposed. Supported in the upper portion of the partition 16 and the adjacent end wall 16' of the box,is a similar hollow shaft 23, through which the adjacent portion of the shaft 14 is disposed. Carried rigidly on the shaft 1a is a pinion 2 1 which meshes with a pinion 25 on the power shaft 25, adjacent thereto. This pinion 25 has on its hub a smaller pinion 26 which meshes with an idler pinion 28 carried by a counter shaft 27, disposed between the shafts 14 and 25'. The pinion '28, in turn, meshes with a pinion 29 on the adjacent end of the hollow shaft 22. These pinions are so proportioned that the two agitator drums will be rotated in opposite directions and at different speeds. The shafts 25 and 27 are supported on the walls 15 and 15 and the intermediate partition 10. Mounted on the inner end of each of the hollow shafts 22 and 23, is a spider or skeleton head including a series of radiating arms 30, and secured to and extending between the arms of one head and those of the other head, are

the spirally arranged scraper blades 31. 7 It will be noted that the outer ends of each arm 30 supports the ends of two blades, the opposite ends of the blades being supported in two of the arms of the other shaft. It will also be noted that the arms of one hollow shaft are disposed at radial points intermediate the arms of the other hollow shaft.

One end of the shaft 25" is provided with a belt wheel for receiving power from a suitable motor not shown.

In the operation of the device, the slime and sand are fed into the chamber between the walls 15 and 10, the said slime and V sand passing beneath the wall 15 into the inter iediate portion of the box where it is thoroughly agitated by the bars 21 of the inner reel. At the same time the spiral blades 31 of the outerreel lift the'sand and discharge the same laterally through the cut-away side 18 of the box, the slime being drawn inward by the bars21 away from the sand outlet 18 and permitted to pass longitudinally through the box and out the elongated opening 17.

The box'preterably is disposed on a level, instead of on an incline as is the usual prac tice with machines of this char-cater. In the latter instance the sand is apt to wash to the lower end of the box and be discharged with the'slime, while in the present case the sand is discharged at'a point at the side of the box suflieiently remote from the point of discharge of the slime to prevent- The pinions are so proportioned that the sand scraping device moves at a slower rate of speed than the agitator, whereby the lift ing of the sand is more eltectively accomplished.

l/Vhat is claimed is:

1. In a slime'and sand separator, the combination with a casing having an inlet at one end, a slime outlet at the other end, and a sand outlet at one side; of an outer reel rotatably mounted within the casing and having blades moving past said sand outlet, and an inner reel mounted within the outer reel and rotating in the opposite direction, both reels having skeleton heads.

2. In a slime and sand separator, the combination with a casing having an inlet at one end, a slime outlet at the other end, and asand outlet at one side; of an outer reel rotatably mounted within the casing and having blades, and an inner reel mounted coaxially' within the outer reel and rotating more rapidly and having bars pitched, to draw the slime away from the sand outlet.

3. In a slime and sand separator, the combination with a casing having an inlet at one end, a slime outlet at the other end, and a sand outlet at one side; of an outer reel rotatably mounted within the casing and having spiral blades moving past said sand outlet, an inner reel mounted coaxially within the outer reel and rotating in the 0p posite direction and having bars pitched to draw the slime vaway from the sand outlet, both reels having skeleton heads.

In testimony" whereof, I afiix my signa ture, in the presence of two witnesses.

7 'JAMES D. MoDONALD. W Vitnesses R. A. Comm, 7 J. M. FAnLEY. 

